Question: What is the mains plug type that's been replaced in the Union of South Africa?
Paraphrase: What is the mains plug sort that's been supplanted within the Union of South Africa?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q193619 wdt:P1366 ?X . ?X wdt:P2853 ?answer}
Answer: Europlug, BS 546, IEC 60906-1, AC power plugs and sockets: British and related types